A fellow Labour MP has come forward to say she has suffered unwanted attention from Luton MP Kelvin Hopkins spanning 20 years.
Former frontbencher, Kerry McCarthy, said the Luton North MP sent her a series of letters and cards commenting on her appearance, including one in which he described having a dream about her.
Ms McCarthy, a former shadow environment secretary, is the first MP to make specific claims of inappropriate behaviour since the Westminster scandal erupted.
She says she found his behaviour "upsetting" but did not feel she had anywhere to turn to about it.
She said she had been reassured and encouraged by the response she received after raising it with chief whip Nick Brown last Friday and party leader Jeremy Corbyn's office on Monday.
But in a statement, Mr Hopkins said Ms McCarthy's complaint had caused him "immense personal hurt and utter dismay" from someone he counted as a friend.
Ms McCarthy said she believed Mr Hopkins, who, she says, urged her in two of the notes to "dispose" of them, knew his actions were wrong.
She said she decided to go public after the "bravery" of a young activist, Ava Etemadzadeh, who complained last week about the behaviour of Mr Hopkins.